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Finding the Fourth Proportional to 18,460.84, 27,690.48 and 8,596.72

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Solution

The fourth proportional to 18,460.84, 27,690.48 and 8,596.72 is: 12,894.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.84 : 27,690.48 = 8,596.72 : x
  2. Step 2: Convert to fraction form
    18,460.84/27,690.48 = 8,596.72/x
  3. Step 3: Cross multiply
    18,460.84x = 27,690.48 × 8,596.72
  4. Step 4: Simplify right side
    18,460.84x = 238,047,303.23
  5. Step 5: Solve for x
    x = 238,047,303.23/18,460.84
  6. Step 6: Final answer
    x = 12,894.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.